Carbureter-valve.



N'LP. MADER.

OARBUBBTER VALVE.

.APPLIOATIOH FILED MAR. 11, 1909. 7 973,056, Patented Oct. 12,1910.

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' N. P.MADER.

GARBUBETBB VALVE.

APPLICATION FILED IAB. 11, 1909.

973,056. Patented Oct. 18,1910.

2 sun's-inn 2.

w /g W. fla'omeys.

UNITED STATES PATENT OFFICE.

NICHOLAS P. MADER, 0F SUN PRAIRIE, WISCONSIN.

GARBURETER-VALVE.

residing in Sun Prairie, in the county of Dane and State of Wisconsin,have invented new and useful Improvements in Carbureter-Valves, of whichthe following is a description, reference being had to the accompanylngdrawings, which are a part of this specification.

This invention relates to improvements in carbureters used in connectionwith engines impelled by explosive vapor.

One of the objects of this invention is to provide a carbureter in whichthe explosive fluid is vaporized and thoroughly mixed with air beforeentering into the engine cylinder.

Another object of this invention is to provide a carbureter in which theamount of explosive charge fed to the engine cylinder may be limited instarting the engine to prevent flooding of the cylinder without changingthe adjustments of the valves controlling .the feed of the explosivecharge ordinarily used.

A further object of this invention is to provide a carbureter in whichthe gasolene supply is kept at a constant level and prevented fromoverflowing into the air inlet valve by means of a float valve.

A further object of this invention is to provide a carbureter in whichthe air may be independently adjusted.

A still further object of this invention is to provide a carbureter inwhich the supply of explosive vapor to the cylinder is controlled.

A still further object of this invention is to provide a carbureter withmeans whereby the explosive fluid may be initially heated in order tomore easily start the engine.

With the above, and other objects in view, the invention consists of thedevice and its parts and combinations, and all equivalents thereof.

In the accompanying drawings, in which the same reference charactersindicate the same parts in all of the views: Figure 1 is a centralvertical sectional view of the completedevice; Fig. 2 is a plan viewthereof, parts broken away to show interior construction; Fig. 3 is avertical sectional detail view taken on line 33 of Fig. 2; Fig. 4; is avertical sectional view of a modification Specification of LettersPatent.

Application filed March 11, 1909.

Patented Oct. 18, 1910. Serial No. 482,652.

of the device; and Fig. 5 is a plan view of the lower portion thereof.

Referring to the drawings the numeral 8 indicates the carbureter casingand 9 the air valve thereof which is adapted to supply air from theopening 9 to mix with the gasolene drawn through the passage 10. Thepassage 10 is formed in the casing and extends from the valve seat 11 tothe short tube 10 which depends from the carbureter to the supplyreceptacle 12 and having threaded connection therewith, and the feed ofthe gasolene through this passage is controlled by a needle valve 13.The supply receptacle is provided with an inlet pipe 1A and an outletpipe 15 whereby the oil is prevented from overflowing into thecarbureter.

A spring pressed air check valve 16 which engages the valve seat 11 andcontrols the amount of air supplied to the carbureter is provided with atubular stem 17 which surrounds an adjustable guide tube 18 and isadapted to slide thereon, the guide tube constituting a hollowsupporting member for said valve-stem. A shoulder 19 is formed on thisguide tube to limit the outward movement thereof with reference to thecarbureter casing and an adjustable rod 20 for adjusting the limit ofmovement of the air valve extends through the guide tube and has athreaded connection with the outer end thereof and is provided with amilled head 21 for convenience in turning the rod for adjustment. Amilled jam nut 22 threaded on the rod and butting against the outer endof the guide is adapted to lock the rod in adjusted position. The innerend of the adjustable rod 20 is provided with a head 23 against whichthe valve strikes in opening and this head also acts as a stop toprevent the entire withdrawal of the rod from the hollow supportingmember or guide tube.

An arm 24; rigidly connected to the outer end of the guide tube 18 isadapted to be moved inwardly and turned to engage the adjustable holdingmember 25 threaded on the stud rod 26 extending from and rigidlyconnectedto the screw cap 27. The cap 27 serves as a cover for theopening through which the air valve is inserted in assembling the partsand also serving as a bearing for the guide tube. A jam nut- 28 is alsothreaded to this stud rod to lock the holding member in adjustedposition. A coiled spring 29 interposed between the arm 24 and the screwcap 27 and surrounding the guide tube 18 is adapted to return the guiderod and connected parts to their normal position when the arm 24: isreleased from the holding member 25. In moving in the arm 24: theadjustable rod 20 threaded thereto is also moved inwardly and the end ofthe adjustable rod is thereby positioned to permit only a slight openingof the air valve and also the opening of the gasolene passage thuslimiting the amount of the charge drawn in by the suction of the engine.

The tubular stem 17 of the valve 16 is provided with an opening 30positioned to permit the free ingress and egress of air to the spacebetween the head of the adjusting rod and the air valve to allow theadjusting rod to move freely within the tube. The air valve is providedwith a fiber face or front screwed thereto to eliminate or deaden thenoise of the parts striking against each other and also provides forreplacing the parts when worn.

From the foregoing it will be seen that the rod 20 and tube member 18after being adjusted relatively to each other to form a proper normalstop for the valve, these two members together may be slidably andquickly adjusted so as to prevent full opening of the valve uponstarting up of the engine, the rod and tube member thereby forming aslidable stop.

The air and gasolene drawn into the carbureter casing 8 moves upwardlythrough the inner tubular extension 31 of the casing and is deflectedoutwardly and downwardly by the inverted cup shaped deflector 32overlapping said extension but spaced a distance therefrom to form anannular passage 33 by ribs 34 extending radially from the sides of thetubular extension 31. These ribs also extend above the top of thetubular extension to space the deflector therefrom. The lower edge ofthe inverted deflector is spaced a distance from the bottom of theannular space 35 formed by the inner tubular extension 31 and the outertubular portion 36 of the carbureter casing. The deflected air andgasolene in striking the bottom wall of the space 35 is deflectedupwardly between the outer tubular portion of the carbureter and theinverted deflector.

The air and gasolene, the latter now being completely mixed with the airand vaporized, strikes the upper portion of the casing and is deflectedinwardly and passes out of the carbureter through the opening 37 andinto the engine. The inverted cupshaped deflector is held in position bythe radial ribs 34 and ribs 38 extending radially from the outer portionof the deflector and projecting upwardly therefrom to engage the innertop surface of the casing.

The outer tubular portion of the carbureter is provided with an annularupstanding flange 39 to provide a space to hold gasolene adapted to beburned to initially heat the vapor within the carbureter in starting theengine in cold weather.

It will be noticed that the lower edge of the inverted cup-shapeddeflector is spaced a greater distance above the bottom wall of thespace 35 than the distance between the deflector and the tubular portion36 and the extension 31. The purpose of this increased size of thepassageway between the deflector and the walls of the carbureter is toprovide a space to accommodate surplus gasolene which might pass overthe inner tubular extension 31 of the carbureter without blocking thepassageway. Any gasolene momentarily accumulating in the space would bequickly vaporized by the air passing thereover which is not so rich ingasolene. It will also be noticed that the top of the carbureter isthreaded to the tubular portion thereby providing means of access to theinterior portion of the carbureter for assembling and cleaning theparts.

With the arm and the adjustable rod in the position shown in Figs. 1 and2 and the needle valve being unscrewed to open the passage the operationof the carbureter thus far described is as follows, in starting theengine the suction caused by the movement of the piston will open theair valve the slight distance permitted by the adjusting rod and a verysmall quantity of air and gasolene will be drawn into the carbureter anddeflected back and forth and thoroughly mixed and vaporized and thenpass into the engine. If the engine should require several turns of thecrank shaft before the charge is ignited and exploded the limited amountof vapor fed to the engine is so small that there would be no danger offlooding the engine with gasolene. As soon as the engine is properlyrotating under the impulse of the explosion, the arm is swung up fromthe holding member and the coiled spring surrounding the guide tube willforce the guide tube and connected parts outwardly until the shoulderformed on said tube strikes against the inner portion of the screw cap.This change permits the air valve to open to the full extent permittedby the position of the adjustable rod and the engine to take in its fullcharge. The air and gasolene in passing through the carbureter will bedeflected up and down and be thoroughly mixed and vaporized. If theengine is started in cold weather the carbureter may be initially heatedby pouring a small quantity of gasolene into the space formed by theupstanding flange of the carbureter and burning the same. If a surplusamount of gasolene should be carried with the air over the inner tubularexfied form the air valve 42 is of the conical.

seat type and the means for adjusting the travel of this valve isomitted although it is provided with the means for reducing the chargewhile starting the engine. The screw cap 27 is provided with a tubularextension 4L3 which is considerably longer than the first mentioned capand the stem 44. is adapted to be guided in the opening formed therein.An adjustable rod 45 provided with a head 46 is also positioned in thecap opening and extends therethrough and has a turning member in theshape of a cross pin 47 which is adapted to engage one of the holdingpins 48 extending from the hold ing rod 49 fast to the screw cap 27. Acoiled spring 50 interposed between the screw cap 27 and a transversepin 51 and surrounding the adjustable rod is adapted to move the rodoutwardly to its normal position to permit the full opening of the airvalve. The opening in the outer portion of the cap is of smallerdiameter than the head of the adjustable rod to form a shoulder 52 toprevent the entire withdrawal of said rod. The holding pins 48 serve toadjust the opening of the air valve in the same manner as the adjustableholding member 25. In this form of construction the upper portion of thecasing is in the form of a separate member which has a threadedconnection with the lower portion as indicated at 53 and is easilyremovable therefrom. The opening 37 of the carbureter is provided with adamper 5% having an operating handle 55 and this damper isadapted to beturned to adjust the size of the opening to limit the amount of vaporpassing therethrough.

What I claim as my invention is:

1. A carbureter valve comprising a casing having a discharge and anair-intake opening, a valve-seat in connection with the airintakeopening, the seat being provided with an oil passage, a valve having astem projectingtherefrom, a hollow supporting member carried by thecasing with which the valve-stern has slidable engagement, a springunder permanent predetermined tension interposed between the valve andeasing, a slidably adjustable stop fitted within the supporting member,the stop being engageable with the valve, a holding member carried bythe valve casing, locking means in connection with the slidableadjustable stop .exterior of said valve casmg,

and a spring in connection with the aforesaid stop in opposition to theholding member.

2. A carbureter valve comprising a casing having adischarge and anair-intake opening, a valve-seat in connection with the airintakeopening, the seat being provided with an oil passage, a guide tubeslidably mounted in the casing and extending therethrough, the tubebeing concentric with the valve seat, a tubular stem slidably mountedupon the guide tube, an inwardly opening valve in connection with thestem for engagement with the valve-seat, a spring interposed betweensaid casing and valve, whereby the same is held to its seat, a rodfitted within the guide tube engageable with the valve, means foradjusting the rod within said guide tube relative to said valve, aholding member carried by the casing, and means carried by the slidableguide tube exterior of the casing for engagement with the hold ingmember.

3. A carbureter valve stem comprising a casing having a discharge and anair-intake opening, a valve-seat in connection with the air intakeopening, the seat being provided with an oil passage, a guide tubeslidably mounted in the casing and extending there- .valve, the springbeing under a predetermined permanent tension whereby said valve is heldto its seat, a rod fitted within the guide tube and in screw-threadedconnection therewith, one end of which rod constitutes a permanent stopfor the valve, an adjustable holding member carried by the casing, meanscarried by said guide tube exterior of the casing for locking engagementwith the holding member, and a coiled spring interposed between thecasing and guide tube in opposition to the holding member.

4:. A carbureter valve comprising a casing having a discharge and anair-intake opening, a valve-seat in connection with the air-intakeopening the seat being provided with an oil passage, a cap inscrew-threaded engagement with the valve casing, a guide tube slidablymounted within the cap, a valve for the seat, a hollow stem extendingfrom the valve in slidable engagement with the guide tube, a headextending from said guide tube intermediate of the stem and casing, arod fitted in the hollow tube having a head adapted to engage said valveand thereby limit the opening said tube member interposed between 10said cap and arm.

In testimony whereof, I afiix my signature, in presence of twoWitnesses.

NICHOLAS P. MADER.

WVitnesses:

J. M. BA'rz, M. ANNA BATZ.

